CN104158574B - 在支持多天线的无线通信系统中传输下行链路基准信号的方法及装置 - Google Patents

在支持多天线的无线通信系统中传输下行链路基准信号的方法及装置 Download PDF

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CN104158574B
CN104158574B CN201410332542.9A CN201410332542A CN104158574B CN 104158574 B CN104158574 B CN 104158574B CN 201410332542 A CN201410332542 A CN 201410332542A CN 104158574 B CN104158574 B CN 104158574B
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csi
ofdm symbols
antenna port
ofdm symbol
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CN104158574A (zh
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高贤秀
韩承希
郑载薰
任彬哲
李文
李文一
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LG Electronics Inc
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LG Electronics Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
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    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
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    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
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    • H04J—MULTIPLEX COMMUNICATION
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    • H04J2211/00—Orthogonal indexing scheme relating to orthogonal multiplex systems
    • H04J2211/003—Orthogonal indexing scheme relating to orthogonal multiplex systems within particular systems or standards
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
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    • H—ELECTRICITY
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
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    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
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    • H—ELECTRICITY
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
CN201410332542.9A 2009-08-14 2010-08-13 在支持多天线的无线通信系统中传输下行链路基准信号的方法及装置 Active CN104158574B (zh)

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US23384309P 2009-08-14 2009-08-14
US61/233,843 2009-08-14
US29935410P 2010-01-29 2010-01-29
US61/299,354 2010-01-29
US33371910P 2010-05-11 2010-05-11
US61/333,719 2010-05-11
US34604410P 2010-05-19 2010-05-19
US61/346,044 2010-05-19
CN201080036109.0A CN102474494B (zh) 2009-08-14 2010-08-13 在支持多天线的无线通信系统中传输下行链路基准信号的方法及装置
KR1020100078056A KR101769368B1 (ko) 2009-08-14 2010-08-13 다중 안테나를 지원하는 무선 통신 시스템에서 하향링크 참조신호를 전송하는 방법 및 장치
KR10-2010-0078056 2010-08-13

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CN106559162B (zh) * 2015-09-24 2020-03-06 索尼公司 用于无线通信的基站侧和用户设备侧的装置及方法
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CN107623542B (zh) * 2016-07-13 2023-09-01 华为技术有限公司 一种发送参考信号的方法、相关设备及通信系统
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US10505685B2 (en) * 2016-08-26 2019-12-10 Qualcomm Incorporated Adapting to delay spread variation in wireless communication systems
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CN108322245B (zh) * 2017-01-17 2021-09-14 中国移动通信有限公司研究院 信道状态参考信号发送方法、装置及接收方法、移动终端
WO2018143688A1 (ko) * 2017-02-01 2018-08-09 엘지전자(주) 무선 통신 시스템에서 채널 상태 정보 참조 신호 송수신 방법 및 이를 위한 장치
CN110945816B (zh) * 2017-03-23 2022-09-23 创新技术实验室株式会社 用于传送和接收解调参考信号的方法和装置
CN108632001B (zh) * 2017-03-24 2024-09-17 华为技术有限公司 一种参考信号发送方法、接收方法和装置
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CN109150428B (zh) * 2017-06-15 2020-07-24 电信科学技术研究院 一种信号传输方法、装置及基站
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